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Straightforward question. 天爾遠波 (or 弖爾乎波) - written as てにをは - is a term used to refer to the Japanese particles (助詞) or sometimes Japanese grammar as a whole (文法). So how to do pronounce the は at the end? Is it ワ or ハ? Presumably it's the former since it's describing particles, but I've never seen it definitively explained anywhere.